212102101220212 has 12 divisors (see below), whose sum is σ = 424204202440480. Its totient is φ = 90900900522936.

The previous prime is 212102101220209. The next prime is 212102101220249. The reversal of 212102101220212 is 212022101201212.

212102101220212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 212102101220212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3787537521762 + ... + 3787537521817.

Almost surely, 2^{212102101220212} is an apocalyptic number.

It is an amenable number.

212102101220212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212102101220212 is a wasteful number, since it uses less digits than its factorization.

212102101220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7575075043590 (or 7575075043588 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212102101220212 its reverse (212022101201212), we get a palindrome (424124202421424).

The spelling of 212102101220212 in words is "two hundred twelve trillion, one hundred two billion, one hundred one million, two hundred twenty thousand, two hundred twelve".